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How to replace single hung aluminum windows in concrete block house

How to replace single hung aluminum windows in concrete block house


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Old 11-28-13, 08:27 AM
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How to replace single hung aluminum windows in concrete block house

I have a concrete block house in West Central Florida that has single pane single hung aluminum windows. I would like to know if it is feasible to replace them with double pane windows, and if so, how?
 
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Old 11-28-13, 08:35 AM
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Going to need some pictures inside and out.
Anything's possible with enough money thrown at it.
 
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Old 11-28-13, 12:21 PM
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You just have to order the windows the right size to fit the opening.
 
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Old 11-28-13, 02:29 PM
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Your windows are attached to either 1x or 2x PT lumber that is nailed to the block. When you unscrew your existing windows that lumber should stay in place and you'd just install the new window to wood buck. There should also be either a bead of caulk sealing the window to the block or it might be floated with stucco/mortar. You'll also want to cut the caulk where the window meets the drywall return on the inside. I'm a painter, not a window installation guy but I've painted a lot of new construction in central fla and am fairly familiar with the construction methods used there.

You probably have either a tile or marble sill on the inside, you'd want to carefully break that grout when you remove the old window so you don't harm the rest of the sill ..... unless you intend to replace it too.
 

Last edited by marksr; 11-28-13 at 02:54 PM.
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Old 11-28-13, 03:07 PM
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The windows aren't necessarily attached to any lumber. If it's a masonry wall inside and out, many aluminum windows have a fin and they are slipped down into a notch in the masonry blocks or sandwiched between a double masonry wall as the house is being built, then they are mortared/grouted in and caulked. Of course, Florida standards are probably different than, say, Arizona methods because of hurricane codes.
 
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Old 11-29-13, 04:22 AM
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I'm just going by what I've seen done with all the new construction houses I used to paint in fla [mostly in the '70's and '80's] They all used wood nailed to the block window opening ..... ...... that's not to say that different builders or different areas/time periods used different methods. Most block houses built in fla have an 8" concrete block wall with 1x2 furring strips on the inside to attach the drywall to.
 
 

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